Номер 1068 — ГДЗ алгебра 8 класс Мерзляк

Упростите выражение:

1) 7y/y² – 4 – 14/y² – 4;                                5) (3a – 1)²/4a – 4 + (a – 3)²/4 – 4a;
2) y² – 3y/25 – y² – 7y – 25/25 – y²;                             6) x² – 3x/(2 – x)² – x – 4/(x – 2)²;
3) 9p + 5/3p + 6 – 10p – 12/3p + 6 + 9p – 1/3p + 6;        7) 7/a – 2 – b/2 – a;
4) 7x + 5/3 – x + 5x + 11/x – 3;                            8) 6a/5 – a – 4a/a – 5.